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MIC1557BM5T&R: 产品描述1 Func, 5MHz, CMOS, PDSO5, SOT-23, 5 PIN; 产品类别模拟混合信号IC 信号电路; 文件大小159KB，共10页; 制造商Microchip(微芯科技); 官网地址https://www.microchip.com

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MIC1557BM5T&R概述

1 Func, 5MHz, CMOS, PDSO5, SOT-23, 5 PIN

MIC1557BM5T&R规格参数

参数名称	属性值
是否无铅	含铅
是否Rohs认证	不符合
厂商名称	Microchip(微芯科技)
零件包装代码	SOT-23
包装说明	SOT-23, 5 PIN
针数	5
Reach Compliance Code	not_compliant
ECCN代码	EAR99
模拟集成电路 - 其他类型	SQUARE; PULSE; RECTANGULAR
JESD-30 代码	R-PDSO-G5
JESD-609代码	e0
长度	2.91 mm
湿度敏感等级	1
功能数量	1
端子数量	5
最高工作温度	85 °C
最低工作温度	-40 °C
最大输出频率	5 GHz
封装主体材料	PLASTIC/EPOXY
封装代码	LSSOP
封装等效代码	TSOP5/6,.11,37
封装形状	RECTANGULAR
封装形式	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）	240
电源	3/15 V
认证状态	Not Qualified
座面最大高度	1.45 mm
最大供电电压 (Vsup)	18 V
最小供电电压 (Vsup)	2.7 V
标称供电电压 (Vsup)	5 V
表面贴装	YES
技术	CMOS
温度等级	INDUSTRIAL
端子面层	Tin/Lead (Sn85Pb15)
端子形式	GULL WING
端子节距	0.95 mm
端子位置	DUAL
处于峰值回流温度下的最长时间	30
宽度	1.625 mm

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MIC1555/1557

IttyBitty

RC Timer / Oscillator

General Description

The MIC1555 IttyBitty

CMOS RC timer/oscillator and

MIC1557 IttyBitty

CMOS RC oscillator are designed to

provide rail-to-rail pulses for precise time delay or

frequency generation.

The devices are similar in function to the industry standard

“555”, without a frequency control (FC) pin or an open-

collector discharge (D) pin. The threshold pin (TH) has

precedence over the trigger (TR) input, ensuring that the

BiCMOS output is off when TR is high.

The MIC1555 may be used as an astable (oscillator) or

monostable (one-shot) with separate threshold and trigger

inputs. In the one-shot mode, the output pulse width is

precisely controlled by an external resistor and a capacitor.

Time delays may be accurately controlled from micro-

seconds to hours. In the oscillator mode, the output is

used to provide precise feedback, with a minimum of one

resistor and one capacitor producing a 50% duty cycle

square wave.

The MIC1557 is designed for astable (oscillator) operation

only, with a chip select/reset (CS) input for low power shut-

down. One resistor and one capacitor provide a 50% duty

cycle square wave. Other duty-cycle ratios may be

produced using two diodes and two resistors.

The MIC1555/7 is powered from a +2.7V to +18V supply

voltage.

The MIC1555/7 is available in the SOT-23-5 5-pin

package, and is rated for –40°C to +85°C ambient

temperature range

Features

•

+2.7V to +18V operation

•

Low current

−

<1µA typical shutdown mode (MIC1557)

−

200µA typical (TRG and THR low) at 3V supply

•

Timing from microseconds to hours

•

“Zero” leakage trigger and threshold inputs

•

50% square wave with one Resistor, one Capacitor

•

Threshold input precedence over trigger input

•

<15Ω output on resistance

•

No output cross-conduction current spikes

•

<0.005%/°C temperature stability

•

<0.055%/V supply stability

•

Small SOT-23-5 surface mount package

Applications

•

Precision timer

Pulse generation

Sequential timing

Time-delay generation

Missing pulse detector

Micropower oscillator to 5MHz

Charge-pump driver

LED blinker

Voltage converter

Linear sweep generator

Variable frequency and duty cycle oscillator

Isolated feedback for power supplies

Typical Application

+5V

MIC1555

Standby

Trigger

100µs

TRG

GND

THR

+5V

MIC1557

Output

Enabled

Disabled

8kHz

OUT

GND

OUT

Output

T/T

0.1µF

Monostable (One-Shot)

IttyBitty is a registered trademark of Micrel, Inc.

Astable (Oscillator)

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (

408

) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

May 2010

M9999-052610-D

MIC1557BM5T&R相似产品对比

	MIC1557BM5T&R	MIC1557YM5TX	MIC1555YM5TR	MIC1555BM5TX	MIC1555BM5T&R
描述	1 Func, 5MHz, CMOS, PDSO5, SOT-23, 5 PIN	IC,TIMER,CMOS,TSOP,5PIN,PLASTIC	SQUARE; PULSE; RECTANGULAR, 5MHz, TIMER, PDSO5, LEAD FREE, SOT-23, 5 PIN	IC,TIMER,CMOS,TSOP,5PIN,PLASTIC	1 Func, 5MHz, CMOS, PDSO5, SOT-23, 5 PIN
是否Rohs认证	不符合	符合	符合	不符合	不符合
厂商名称	Microchip(微芯科技)	Microchip(微芯科技)	Microchip(微芯科技)	Microchip(微芯科技)	Microchip(微芯科技)
包装说明	SOT-23, 5 PIN	LSSOP, TSOP5/6,.11,37	LSSOP,	SOT-23, 5 PIN	SOT-23, 5 PIN
Reach Compliance Code	not_compliant	compliant	compliant	compliant	not_compliant
模拟集成电路 - 其他类型	SQUARE; PULSE; RECTANGULAR	SQUARE; PULSE; RECTANGULAR	SQUARE; PULSE; RECTANGULAR	SQUARE; PULSE; RECTANGULAR	SQUARE; PULSE; RECTANGULAR
JESD-30 代码	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5
JESD-609代码	e0	e4	e4	e0	e0
长度	2.91 mm	2.9 mm	2.9 mm	2.9 mm	2.91 mm
湿度敏感等级	1	1	1	1	1
功能数量	1	1	1	1	1
端子数量	5	5	5	5	5
最高工作温度	85 °C	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
最大输出频率	5 GHz	5 GHz	5 GHz	5 GHz	5 GHz
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	LSSOP	LSSOP	LSSOP	LSSOP	LSSOP
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）	240	260	260	240	240
座面最大高度	1.45 mm	1.45 mm	1.45 mm	1.45 mm	1.45 mm
最大供电电压 (Vsup)	18 V	18 V	18 V	18 V	18 V
最小供电电压 (Vsup)	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
标称供电电压 (Vsup)	5 V	15 V	5 V	15 V	5 V
表面贴装	YES	YES	YES	YES	YES
技术	CMOS	CMOS	CMOS	CMOS	CMOS
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子面层	Tin/Lead (Sn85Pb15)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn85Pb15)
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
端子节距	0.95 mm	0.95 mm	0.95 mm	0.95 mm	0.95 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL
处于峰值回流温度下的最长时间	30	40	40	30	30
宽度	1.625 mm	1.6 mm	1.6 mm	1.6 mm	1.625 mm
零件包装代码	SOT-23	-	SOT-23	-	SOT-23
针数	5	-	5	-	5
ECCN代码	EAR99	-	EAR99	-	EAR99
封装等效代码	TSOP5/6,.11,37	TSOP5/6,.11,37	-	TSOP5/6,.11,37	TSOP5/6,.11,37
认证状态	Not Qualified	-	Not Qualified	-	Not Qualified

MIC1557BM5T&R

MIC1557BM5T&R概述

MIC1557BM5T&R规格参数

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MIC1557BM5T&R相似产品对比

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